Neptune's Cave

Top of the list of Alghero's unmissable attractions

Definitely worth seeing at least once in everyone’s lifetime, the marine grotto offers a live experience of unique beauty and remarkable charm.


Located on the north-western ridge of the promontory of Capo Caccia between the cliffs overlooking the sea, Neptune’s Cave truly is one of nature’s most breath-taking sites in the Mediterranean.


Within a series of rooms, tunnels, ravines and passages marked by karst topography, with majestic concretions of stalagmites and stalactites, emerge the crystal clear salty waters of the lake La Marmora, considered one of the largest inner salt lakes in Europe. 


From the entrance hall, the inner tourist pathway winds horizontally for a few hundred meters along a trail carved out on the inside of the cave, taking visitors up to the upper terraces within the different rooms.


It can be accessed by land only via the famous Escala del Cabirol [‘Goat’s Stairs], down the 654 steps as far as the cave’s mouth revealing the magnificent seascape overlooking where Alghero’s deep-blue sea and the sky come together in an embrace on the horizon.


In the tourist season, Neptune’s Cave can also be easily reached by sea, with various boat companies offering enjoyable daily cruises from the tourist port of the Catalan town, or, upon request only, from Cala Dragunara, a small cove located nearby in the bay of Porto Conte.

Address: Strada Provinciale SP55 |  Location: Capo Caccia


Daily open from 10.00am to 3.00pm [last admission] upon favourable sea conditions.


BY LAND | All year | Through the Escala del Cabirol stairway [654 steps] - Reservation is compulsory. It is necessary to reach the square in front of the ticket office, at Capo Caccia, 40 minutes before the start of the visit in order to respect the check-in time and the time required to walk up the steps.

BY SEA | SERVICE OPERATING FROM APRIL TO NOVEMBER | Harbour of Alghero - Linea Grotte Navisarda +39 320 741 2400 - +39 079 950603 | Linea Grotta "Frecce delle Grotte" +39 331 722 9999 - +39 368 353 6824 - The boat ticket does not include the entrance fee to Neptune’s Cave.

Buy your ticket online or at the Neptune’s Cave ticket office at Capo Caccia, in the square in front of the steps.


  • Full price € 14,00;
  • Reduced price € 10,00 | children from 7 to 14 years old; Alghero’s community residents; pre-booked groups of minimum 25 people;
  • School groups € 8,00 | minimum 15 students of schools of all levels;
  • Free admission | people with a disability; caretakers of not self-sufficient people; children under 7 years old; teachers accompanying school groups; tour guides accompanying groups

Social channels: Facebook | Instagram

Contacts: | +39 345 741 8361

Enter the dates of your stay